Conversion unit for coining presses



May 17, 1949. W. P. KRUSE ETAL I CONVERSION UNIT FOR COINING PRESSES 4Sheets-Sheet 1 Filed March 23, 1945 Y B s 4 2 5 F75 5 F m 5 D INVENTOR5VY/LL/AM F? KEUSE ATTORNEY May 17, 194,9. w. P. KRUSE l =I T AL2,470,102

CONVERSION UNIT FOR COINING PRESSES 4 Sheet s-Sheet 2 Filed March 25,1945 INVENTORS MAL/AM I? A RU5E BY Jess/ 14 VV STEEL ATTORNEY May 17,1949. w. P. KRUSE ETAL V CONVERSION UNIT FOR (JOINING PRESSES FiledMarch 23, 1945 4 Sheets-Sheet '5 ATTORNEY W. P. KRUSE ETAL CONVERSIONUNIT FOR COINING PRESSES May 17, 1949.

Sheets-Sheet 4 Filed March 23, 1945 IINVENTORS W/LLm/w P Keusa BYJOSIEPH W 5115151.-

ATTORNEY Patented May 17, 1949 CONVERSION UNIT FOR. COINING PRESSESWilliam Peter Kruse, San Francisco, and Joseph Wynn Steel, Alameda,Qalif.

Application March 23, 1945, Serial No. 584,482

1 Claim. (01. 78-99) (Granted under the act of March 3, 1883, as

The invention described herein may be manufactured and used by or forthe Government of the United States for governmental purposes withoutthe payment to us of any royalty thereon in accordance with theprovisions of the act of April 30, 1928 (Ch. 460, 45 Stat. L. 467).

Our invention relates to coin stamping presses and particularly to aconversion unit by means of which presses designed for stampin a singlecoin for each cycle of operations may be converted into one which stampstwo coins for each cycle of operations, thereby increasing the output ofeach press one hundred percent.

In the accompanying drawings:

Figure 1 is a plan view of our unit attached to a fragment of a presswith the feeding arms holding a pair of blanks in position for stamping.

Figure 2 is a vertical section on the line 2-2 of Figure 1.

Figure 3 is a fragmentary plan view similar to Fig. 1 of the planchet"or blank feeding arms, the latter being in approximate receivingposition.

Figure 4 is a fragmentary elevation showing our means for feeding blanksfrom a single tubular magazine into twin magazines.

Figure 5 is a fragmentary plan View of a tubular magazine and ourmechanism for feeding a blank into each twin magazine alternatively.

Figure 6 is a vertical section on the line 6-6 of Figure 5.

Figure 7 is a vertical section on the line 'l1 of Figure 5.

Figure 8 is a horizontal section on the line 8-8 of Figure 6.

Figure 9 is a plan view of a collar which holds our twin dies in properalignment.

Figure 10 is a vertical section on the line Ill-10 of Figure 9.

Figure 11 is an elevation of one of our lower dies.

Figure 12 is a plan view of the die illustrated in Figure 11.

Figure 13 is an elevation of one of our upper dies.

Figure 14 is a bottom plan view of the die illustrated in Figure 13.

In these drawings:

A single tubular magazine I l receives blanks or' planchets l2 from anysuitable hopper (not shown). The blanks I2 fall be gravity through themagazine ll (Fig. 2) to a shutter l3 which is provided with ablank-receiving recess M. The shutter I3 is provided with a laterallyextending lug l5 (Fig. 4) which is engaged in a terminal slot IS in onearm I! of a bell crank 18 on a pivot l9 amended April 30, 1928; 370 0.6.257)

which extends laterally from the wall of two spaced tubular magazines20, 2|, directly under the magazine II and shutter l3 (Figs. '7 and 8).A second bell crank arm 22 is engaged by a spring detent 23 attached toa vertically reciprocated element 24 (Figs. 1 and 2) of a coin stampingpress, whereby the shutter I3 is moved in one direction for each cycleof operation of the press, while a tension spring 25 attached to the lug15 provides a means for returning the shutter [3 to its initialposition. As the shutter I3 is reciprocated a blank drops into therecess l4 each time the recess passes under the magazine H and is thendeposited in a magazine 20 or 2|, each of which is provided with a sightopening 26 or 21 (Fig. 8).

Beneath the downwardly open magazines 20, 2| are two feeder arms 28 and29 (Figs. 1-3) which are cut out at 30, 3|, 32 and 33 to provideblank-receiving recesses which align with the magazines 20 and 2|,respectively, when in receiving position (Fig. 3)

The feeder arms 28, 29 deposit a blank on each of two lower dies 35 and36 (Fig. 2) which are flattened adjacent to each other and held inalignment by a guide collar 31. The two upper dies 38 and 39 aresimilarly held in alignment with the lower dies in recesses 40 and 4| inthe vertically reciprocated member 24.

It will be observed that a line joining the centers of the dies 35 and36 forms an acute angle with the direction of travel of the feeder arms28 and 29 (Fig. 1) and that a line joining the center lines of themagazines 20 and 2i makes the same angle with the direction of travel ofthe feeder arms 28 and 29. This angular arrangement reduces the distancetraveled by the feeder arms 28 and 29 between the magazines and the dies(see Fig. 1) The collar 31 is designed to fit in the standard presses.

Referring to Figure 2, the mechanism for reciprocating the arms 28 and29 is shown as slide members 42 to which are rigidly secured verticalstuds 43 which provide pivotal bearings 44 for the feeder arms 28 and29.

The mechanism described above provides a conversion unit which may beused with a standardized coin press with a minimum of alteration.

It should be understood that the present disclosure is for the purposeof illustration only, and that the invention includes all modificationsand equivalents which fall within the spirit and scope of the appendedclaim, in which it is our intention to claim all novelty inherent in ourinvention as broadly as possible in view of the prior art.

What We claim is- A coining press including a single stock coinblankmagazine, a reciprocating feeding means for withdrawing a blank fromsaid magazine successively on each forward and return stroke of saidmeans, a pair of spaced receiving magazines into each of which saidfeeding means deposits a single blank on each of said strokes, blanktransfer means movable to one position on Which said receiving magazinessimultaneously deliver a pair of blanks, a pair of lower coining dies, aplunger, a pair of upper dies on said plunger, means moving said blanktransfer means to another position for delivering said pair of blanksonto said lower coining dies on each cycle of operation for simultaneouscoining of said blanks, a bell crank connected to said reciprocatingfeeding means for moving said feeding means forward to transfer a blankinto one of said magazines and spring means for returning said feedingmeans for depositing a blank into the other of said receiving magazinesand means on said plunger for engaging and operating said bell crank onthe down stroke of said plunger whereby the movement of the bell crankdeposits one blank on the down stroke of said plunger and said springoperates to deposit another blank on the upstroke of said plunger.

WILLIAM PETER KRUSE. JOSEPH WYNN STEEL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 48,157 Coleman Jan. 13, 1865574,227 Smith Dec. 29, 1896 912,194 Smith Feb. 9, 1909 1,129,882 McFeelyMar. 2, 1915 1,230,811 Shippee June 19, 1917 1,827,566 Dickson Oct. 13,1931 1,941,992 MaKenny Jan. 2, 1934'

